Rotary motor



Patented Apr. 9, 1940 PATENT o1=1=1c1:4

no1-Any Moron Walter E. Humrichouse, Hagerstown, Md., as-

signor of one-half to John Charles Ullrich,"

Hagerstown, Md.

Application June 4, 1937, sei-iai No. 146.475 17 claim (ci. 12a-15) 'Ihis invention relates to certain new and useful improvement in rotary motors of a type particularly designed to be operated as an internal combustion motor but also adapted to be op- 5 erated byother fuel such as vaporized oil, steam,

et cetera. The primary object of the invention resides in the provision of a rotary motor of this type which is simple and practical in construction and opl eration,composed of the minimum number of operative parts and assures the maximum power and elciency. in operation on the minim amount of inexpensive fuel.'

Another object of the invention resides in the provision of a rotary motor of the character statedwhich is compact and complete in a single. A unit in which al1 four phases of a complete cycle, namely, intake, compression, firing, exhaust, take place within each complete revolution of the 20 shaft.y

i A further object of the invention reside'sin the provision of a rotary motor of the type stated, the constructionand operation of which assu-res delivery of the fu'll force of each explosion dieffectively drive the piston in a positiv'eina'nner, the same as now successfully done in the cases of thehighly, developed operative andv emcient 1 internalcombustion motors or engines of the reprovisionof specialfpositive lock-heads for opposite piston chambers of, the motor unit with hydraulic and also mechanical `'controlling 50 mechanism -for the ylock-heads lto assume proper covoperation of the' lock-heads and' positive retention of each lock-head in its locking position at. the correct time and for the proper period, during operation 4of the motor.

rectly and positively against the piston head to concentric chamber in which operates a special of the disk rotor, on one face.

A fwn-,nerobiect of the invention resides 1in the A further object of the invention resides in the provision of a, quiet and smoothly operating motor in which al1-of the operative and co-oeratmg parts function without a striking or hammering action of one part against another. 4

A further objectof theinvention resides Ain the provision of a rotary motor in which is assured the-drawin`g in of a generous chargethrough a strong suction immediately following a partial vaccum in the piston chamber or cylinder, then a positive driving and steady compression of this -tion of the motor shaft.

' A further object of the invention resides in the provision of a rotary motor of the type stated having a water chamber located within the centrai portion of the structure-and between opposed piston chambers or cylinders for constant circulation of water or another suitable `medium through the heart of the motor and thus assure constant cooling ofthe interior of the motor and in co-operation with appropriate means for cool-v ingtheexterior of the motor thereby give double assurance against overheating of the motor dur-f ing operation thereof.

, A'further object of the invention resides in the provision of a rotarymotor of .the type stated havingY all of its parts constructed and arranged in such a manner that constant oiling or lubrication of all loperative parts and those cooperating therewith, as required, is assured by suction created during operation of the motor and all' friction and tendencies toward resistance to op-4 eration and free, eflicentfunctioning of the sev- `eral movable parts of themotor reduced to the minimum.

lA further object ofthe invention resides in the provision of a rotary motor of the type stated which utilizes the exhaust for heating and fur,- ther vaporizing each charge as it passes from the carburetterinto the pistonv chamber or cylinder so .that the motor always receives hot and thoroughly vaporized charges for compression, I

A further object of the invention resides in the provision of a rotary motor-of the type stated which may be readily and inexpensively manufactured in independent complete units each of which may be carried on the same shaft'and arranged i'or ringv at a diiferent period in each revolution of the shaft, each unit being adapted to be brought into driving operation independentanother when assembled with theirchannelled sides outwardly to accommodate the rotors and arcuate pistons and nally receive the outer side plates, the .bolts for which also pass through the outer spacing ring employed between said sides or halvesand which ring, together with an inner spacing ring and the backs of the sides or halves of the unit, serve to form the inner Water chamber of the unit.

A further object of the invention resides in the provision of a rot'ar'y'motor in which even the arcuate pistons for the opposite sides or halves of the unit are identical in construction and are opposed to one another in reversed relation and in operation they slide or glide over the respective ends of the compression chamber, closing said respective ends alternately, during each revolution of the shaft.

' A further object of the invention resides in the provision of a rotary motor of the type stated which is as far as possible carbon free and which has a complete and clean exhaust of all spentvv gasses without possibility of 'back lash and mixing of expended charges with 'fresh charges and con- Y sequent manufacture andA expulsion of carbonmonoxide.

Otherobjects of the invention will appear in the following detailed description, taken in connection with'the accompanying drawings, forming apart of this specification, and in which drawings:

Figure` 1' is a side elevation looking at the intake and compression side of. the motor with the outer. side plate or cover plate removed, parts brokenlaway and parts in section and showing the arcuate charge compressing piston approaching the entrance end of the compression chamber to pass over and close the said entrance endjust previous to actuating the co-operative lock-heads. Figure 2 is a top plan view of the motor, with parts broken away. Y

v Figure 3 is a side. elevation, looking at the reverse side of the motor with the outer side plate or cover plate Iremoved, parts broken away and parts in section and showing the arcuate exhaust expelling piston in position for the firing of the highly compressed charge directly opposite the piston head. i

Figure 4 is a transverse section through the motor, taken substantially on the plane of line 4-4 of Figure 3, looking in the direction indicated by the arrows, to show the positionof movable parts'in both sides of the motor atthe period of firing of a charge.

' Figure 5 is a view similar to Figure 4, showirng the relative positions ofthe same movable parts at the period of. the' approach of the arcuate charge compressing piston to the entrance end of. the compression chamber to--pass 'over and close the said entrance end just previous to, actu-.-

ating the .co-operative lock-heads.

' Figure 6 is a vertical transverse section through the motor, taken substantially on the plane of line 6 6 of Figure 1.

Figure '74 isa detail elevation of the disk rotor, looking at the inner face thereofcarryingthe l arcuate piston.

'Figure' 8 is an elevation of the reversel side thereof, showing the spiral oil suction groove provided therein. y Figure 9 is an enlarged detail section through .the piston, taken' substantially on the plane of line 9 9 of Figure 1. Figure 10 is a further detail section, taken substantially on the plane of line 'l0-i0 of. Figure v1, transversely through the lock-head. Figure 11is a detail section longitudinally of the lock-head and 'taken substantially on the plane of line Il--ll of Figure 10.

Referring more particularly to the "drawings, wherein like characters indicate like and correspending parts throughout the several views, and wherein a complete unit of the rotary motoris disclosed, it is to be noted that the unit includes a stationary casing stator composed of outwardly .turned casing side sections A and B spaced apart by a pair of. central spacing rings C-C interposed therebetween, one within the other and .thusproviding a central motor cooling' water chamber D of continuous circular form between said .spacing rings C-C and falso between said outwardly turned .casing side sections A and B. where cooling of the rotary motor is essential and will be most effective, as Awill be later clearly apparent. The outwardly turned casing side sections A andv B are identical in construction, each having a continuous inner annular-nance E and a slightly deeper continuous outer annular flange 6.

thus providing a continuous circular pistonwaccommodating chamber 1F or cylinder in each of said side sections A and B, with the lflanges 5 and 6 serving as the side walls thereof. The inner or smaller spacing ring'C is in alignment withthe inner annular flanges 5 and retained in position bydowels 8 or other appropriate means, It is also obvious that washers 9 are employed between the inner or smaller spacing ring C Aand the side sections A and B and likewise, washers l0' are employed between the outer or larger spacing ring C'and the side sections A and B. The outer or larger spacing ring `C is -in alignment with the outer annular flanges 6 and retained in such position by the bolts Il passing Ytherethroughand through the washers l0 and the outerannular flanges 6 and extending beyond the latter to re- 'ceive the removable, stationary side cover plates l2 of the statorfand finally the lock nuts "I3, Connecting web members orspokes I4 or other appropriate connections may be employed between the spacing rings C-JC and they may be thus produced together, as -a single casting, if desired.. The side sections A andB also, may. be

'castings and the cost and labor oi.` production jthus heldl to the minimum. For the purpose of mounting the stator on a motor vehicle chassis, aeroplane frame orthe 1ike,'diametrically opposite radiating lugs l5, provided on the outer pe ripheries 'of th'e side ,sections-A-V and B and the `fiuid employed may be' fedvr to the Vcentral motor coolingwaterchamberD by means of. the cooling fluid feed pipe 'l1 entering said central motor cooling water chamber Dythroughwthe lower portion ofthe outer or larger spacing ring C and the cooling fluid discharged from said central motor u.

movable, stationary side cover plates I2 have in turned annular iianges at their outer ends, designated vand `within said hubs -I9 are retained suitable conventional roller bearings 2l for the rotary shaft 22 of the motor with an appropriate balance wheel 23 locked thereon in any approved manner.

Rigidly mounted on the rotary shaft 22,l inwardly of the removable-stationary side cover plates I2, as by means of the keys`24 are the central hubs 25 of the disk rotors 26 which rotate between the said removable, stationary side cover plates I2 and the respective outwardly turned casing side-sections A and B to which the side removable, stationary side cover plates I2 are attached. The disk rotors 26 areopposed to one another "and repngainst the outer faces of the continuous inner a nular flanges 5 of the respective outwardly turned casing side sections A and B and against the inner faces of the saidremovable, stationary side cover plates I2 and' also against portions of the Washers 21 carried in the annular recesses 28 provided therefor in the inner faces of said removable, stationary side cover plates I2 and engaging the outer facesof the continuous outer annular anges 6, the diameter of the disk rotors 26 being such that their peripheries stop short of and ride against the inner faces of said continuous outer annular flanges 6 serving as the outer side walls of the continuous circularv piston accommodating chambers 1. To assure thorough lubrication of the disk. rotors 26 andthe motor rotary shaft22 and thus reduce friction and wear to the minimum, the disk rotors 26 are provided with spiral oil grooves 29 in their outer faces with the inner ends 30 of said spiral grooves vto '29 turned and terminating at the motor rotary shaft 22, the free outer ends 3I of said` spiral grooves 29 terminating inwardly of the peripheries of said disk rotors 26 and serving to gather the'lubricant from an appropriate lubricant feed pipe 32 by suction, as required, during the operation of the rotary motor.v 'I'he opposite faces'of the disk rotors 26, riding against the outer faces of the flanges 5,'` receive proper lubrication during operationof the motor by a lubricant fed thereto through feed passages 33 in said flanges 5 and receiving the lubricantv from a' suitable sourcegof supply, as indicated at 34 in Figure 1.

An arcuate piston E of rectangular forminin the continuous circularA piston chamber -1 in 'thecasing side section B and when the disk rotors 26 are keyed on the motor shaft 22 in opposedrelation with one of the' disk rotors 26 given a half revolution with respect to the other. 'disk rotor, the arcuate 'pistons E' and F then engage in their respective continuous circular piston chambers 14 in correct relative relation to one another forl continuous travel in the same direc'- drawings, particularly. Figures tion and4 which vwill make them appear to follow one another, as .if they rotated in the same chamber, as will be readily understood'from Figures 1 and 3 of the drawings. Each of the arcuate pistons E and F has one end flattened to form a at head 35 while its other end has one face beveled on a wide arc to form a tapering tail 36, as clearly shown in Figure '1 and the purposes of which will later be apparent. The arcuate pistons E and'F are further provided with piston ring grooves 31 in three of their faces, near their respective flat heads 35 to accon'irnociate piston ring sections 38 having studs 39 projecting from their inner faces and sliding in the sockets 40 provided therefor in the arcuate pistons and in turn communicatingwith passages 4I extending inwardly from the central recess 4'2 provided in `thevflat heads 35 of 'said arcuate pistons E .and F. *Thus, during operation of the rotary motor the piston ring sections 38 will be forced outwardly against the walls of the piston chambers 'I by pressure against the studs 39, fro'mthe charge in one of the piston chambers 1 and the rexhaust in the other piston chamber 1. Piston ring accommodating grooves 43 are also provided in lthefaces of the arcuate pistons E and F, near 36 of said arcuate pistons E' and F; near the centers thereof. `Oil grooves 46- also are provided in the walls or faces of. the arcuate pistons E and F, intermediate the en ds thereof to provide for eiiicient lubrication of the faces of the arcuate pistons 4E and F and the walls of the piston chambers 1, at all times during operation of the i rotary motor.

The stationary casing stator has a transverse raised central portion Gtl formed by extending upwardly portions of the'casingside sections A and B and the outer central spacing ring C. See Figures 1 to 3, inclusive. Rising from this transverse raised; central portion G are the standards 41 having journaled therein the rod 48 on which is centrally mounted the rock arm 49, between said standards 41. 'I'he rock arm 49 extends transversely of the stationary casing stator and has elongated recesses 5D in its under face, near its Iopposite ends, in whichv engage-the spherical members 5I adjustable on the threaded upper extremities 52 of the lock head actuating rods 53 and retained in adjusted position on said lock head actuating rods 53 by lock nuts 54 or the like. Carried in thelower ends of the lock head actuating 4'rods 53, within the upward extensions of said casing side sections A and f B, are small shafts 55"w`ith a roller on either end and designated by the character 56, the lock head actuating rods 53 operating through the upper walls of the said transverse raised central portion G of the stationary casing stator. The pairs of rollers 56 constantly res't on and ride upon the upper,

. tended portions of the respective side casing sections vA and B. When inv their uppermost positions, the lock' heads 51 are entirely within their respective pockets 58, in which they are pivoted on appropriate pivots 59 located transversely in Q the small ends of said pockets A58 but, when in their lowermost positions, the lock heads 51 l. intersect the respective piston chambers and and securely lock in deep transverse, substan width thereof 4 complete angular lower edges 60 thereof rmly tially V-shaped channels 6I in the continuous inner annular flanges 5 and extending theentire When a lockhead 51 is in this position of intersecting vthe piston .chamber 1 into which it operates, the convex head 62 of said lock head is presented opposite to the head 35 of the piston E or F, as the case may be, operating in the same piston chamber 1. In addition to being identical to one another, the lock heads 51 also raise and lower alternately, one being up while the otheris down and vice versa. This reverse movement of the lock heads 51, in unison, is vdue to the constant riding of the rollers 56 thereon and tlf. described operative connections between the two sets or pairs of rollers 56. Efficient and smooth operation of the lock heads 51 as stated, is further assured by use of a stiff oil 63 or the like within the raised portions of the casing side sections A and B, above the said lock heads 51` and passing back and forth between the said casing side sections A and B ,by way of the communicating passage 64 through the raised .portion of the outer central spacing ring C and the corresponding portions of the washers I0. 'I'h-eclosure plug 65 is secured in the opening 66 in the upper or raised portion of one of the casing side sections A or B, after the stiff oil has .been supplied thereto. As the maximum amount of stiff oil is maintained in the entire space above both loci; heads and within the communicating passage 64, at all times, it will therefore, be

evident that the lock heads are alwaysunder l hydraulic control as well as mechanical contro-l, during operation of the rotary motor.` In order that the loci: heads 51 may operate smoothly at all times ywhile changing from one position to.-

another, their lower faces 61 are' curved longitudinally on av greater angle than their upper faces and at a degree substantially corresponding to the curvature of 'the piston tails 36. `Such curvatures of these faces, together with the location of the pivots. 59.for the lock heads 51 and the arcs in which said lock heads operate, with respect tothe. circles in which the pistons E and F travel while operating in their respective piston chambers or cylinders'1, assure a smooth, gradual sliding ar glidingengagement of the piston tails 36 with and riding along the said lower faces ,61 of the respective lock heads 51, toraise the latter steadily and smoothly, on each revolution of the rotary shaft' and render absolutely impossible any striking (or hammering of the pistons E. and

I F against the lock heads 51 or sudden, jerky, convulsive vmovements of the lock heads 51' as thepistons E and F engage therewith. In the oppo-V site side walls of the lock heads 51 areprovided I grooves 6B which accommodate piston ring sec- ,tions G9 having studs 10 projecting from their inner faces and working in the ends of transverse passages 1I in said lockheads 51,-witl1 which com-4 municate passages. 12 extending inwardly from the central recess 13 provided in the convex J heads 62 of said lock heads 51. Thus, it will be evident that any charge or exhaustgases between a piston head 3,5 andthe head 62-'of a lock head 51 when the latter is withinqthe pittori chamber 1, will have aryoutwardly forcing effect on the studs and cause the piston ring sections 69 to form a positive gas seal at the sides of the lock head 51, without interfering with the emcient v operation of the rotary motor.

A chargecompression chamber 14 extends at a sharp angle through the water-.chamber Dand.

is carried` on the upper face of the inner or respect to the longitudinal axis of the rotaryV vshaft 22 of the rotary motor.

The inlet opening or inlet end of the charge compression chamber 14' is provided in the main Wall oi the outwardly turned casing side section A beneath the lock head 51 operating therein and just rear- .wardly of the longitudinal center of the latter,

toward the pivoted end of 'said lock head 51 and near the continuous inner annular flange 5. Thus, the inlet opening or inlet end- 15 of the charge compression chamber 14 is covered over and closed by the tail end or tapering tail 35 of the arcuate piston E gradually as it passes -over the same just previous to arriving at and slidlng into engagement with the longitudinally curved lower face 61 of said lock'head 51. The outlet or discharge end 16 of the charge compression chamber 14 is providedin the main wall of the outwardly turned casing side section B, a short distance forwardly of the convex head 62 of the lock head 51 operating in -said outwardly turned casing side section B, at a point just below the spark-plug. 11 removably secured'.y ir. an approved manner. in the continuous outer annular flange 6 of the said outwardly turned casing side section B, the outlet -or discharge end 16 of y the charge compression chamber 14 opening into the circular piston accommodatingl chamber 1, adjacent to the continuous inner ,annular flange .5. The spark plug 11 'is located on the upper side of the stator near the transverse raised central portion Gvthereof, and near the other side of the transverse raised central portion G. An

exhaust port 18 is .provided through the same continuous outer annular flange 6, in such a position as to assure discharge of all spentgases therethrough by the tapering tail 36 of the arcuate piston F' just previous to sliding engagement of the said tapering tail '36 with the longipositioned opposite the longitudinally curved lower face 61 of the lock h ed 51 and directed outwardly therefrom, just below the transverse raised (tntral portion G. Secured to the outer face of the continuous outer annular flange 6 of the outwardly turned casing side sectionB vby appropriate means isthe flanged end 19 of the exhaust pipe 80, suitably turned and crossed over the stator andthrough a casting 8l appropriately mounted on the outer face of. the outwardly turned casing side section, A.; at a point nearly opposite the spark Yplug 11. This casting 8l has anange t2v to whicus attached in a suitable-- manner the complementaryvflaige 83 of the carburetter supporting pipe 84 with an efficient carburetter 85 mounted thereon.- The charge feed pipe 86 from the carburetter 85 descends through the `carburetter supporting pipe 84 and passes through the portion of the exhaust pipe 80 held in the castingl and then terminates in the charge intake port 81 in thesaid continuous outer annue' lar danse 8,to deliver the charges .of combustible` gases to the circular piston accommodating chamber 1 vin the outwardly turned casing side section A, at a point a short distance ahead of the lockeds position of the lock head 51 vfor said circular piston accommodating chamber 1, whereby this chamber serves as the; charge intake and charge compressing cylinder of the rotary motor, while the other circular piston accommodating chamber 1 in the outwardly turned casing side section B serves as the expansion or power and exhausting cylinder ofthe rotary motor.

From the foregoing paragraphs taken in connection with the accompanying drawings, it will be clearly apparent that I have provided a rotary motor which is of such construction `that all'of the parts 'thereof may be readily manufactured at low cost and easily assembled with the minimum expenditure of both time and labor for efcient operation of the rotary` motor for produ'ction of the maximum power from the minimum amount of any one of several inexpensive fuels,"

the operative parts all being automatically lubricated through operation of the rotary motor, with these few parts so constructed and arranged as to practically eliminate danger of excessive stress thereon and resultant rapid wearthereof. Furthermore, it is obvious that the importance of the inner annular flanges 5 serving as the inner side walls -of the continuous circular piston accommodating chambers 1 or cylinders can not be overestimated, as they are-essentialrfeatures required .to render this type of rotary motor practical and operative. It is also obvious that the structure produced by my special combina#- tion and arrangement of co-operating elements assuring smooth travel ofthe arcuate pistons E and F in "circles concentrically of andwiththe rotary power shaft 2,2, and thuseliminating all possibility of thrusts. `toward and strains and stresses on said rotary power shaft 22, as the power shafts of the various types of motors and engines heretofore produced are subjected to, is of utmost importance.- This structure, which I have disclosed, with the continuousl circular .wa-

ter chamber D in the center or heart of the rotary motor, where it is most needed, is much more effective in preventing overheatingof the rotary motor while operating than in the case of" the various types of motors and engines now in general use and which, due to their construction, make it impossible to locate a water cham- -ber anywhere other than on the outer portion of motor or engine. Many other important and valuable differences in both the construction and; vI

the operationiof this rotary m'otor, over all previous and present types of motors and engines will be obvious.

The operation of the rotary motor is as fol-I lows: Before each combustible charge enters the continuous circular piston accommodating chamber 1.of the outwardly turned casing side section A, the lock head 51 therefor is rmly'locked -in'its lowermost position with its lower edge Gli secured in the deep transverse, substantially V shaped channel 6I in the continuous inner annular 'iiange 5 thereof and the fiat head '35 of the arcuate piston E is opposed to the convex head of said lock head 51. 'I'he rotary shaft 22 rochamber 1, from the time the :charge Aintake port .81' is .uncovered by passing'of the said iilat piston head 35 until the said charge intake port 81 is again covered and thereby closed by the long main portion of the said arcuate piston E.

As the arcuate piston E occupies approximately yone half of the continuous circular piston accommodating chamber -1 at all times, a new charge y, is steadily sucked into the latter during approxpression chamber 14 and thoroughly compressingl [it therein. This compression ofthe charge in' the charge compression chamber 14 continuesv until the taperingtail o f the arcuate piston passes over and completely closes the inlet opening or inlet end 15 of 'the charge compression chamber-14 and starts to slidably engage the longitudinally curved lower face 61 of the f lock head 51 to raise the latter, slide beneath said lock head and -continue in its steady travel around the continuous circular piston 4accommodating chamber 1. During compression in the charge compression chamber 14, the outlet or discharge end 16 thereof is covered ov'er and 'thereby closed by the arcuate piston F in the continuous circular-piston accommodating chamber 1 of -the outwardly turned .casing side section B; the lock head 51 for said outwardly turned casing side section B is in its uppermost position and the lock head 51 vfor )the outwardly turned casing side section A is in its\locked lowermost position, as shown in Figure 1 of the :drawings At completion of compression inthe charge compression chamber 14 and positive closing of thei inlet opening or inlet end thereofbythe arcuate piston E, the fiat head of the -arcuate piston Fin the. continuous circular pistonaccommodating chamber 1 of the outwardly turned casing side section B clearsv the convex jhead 62 -of the lock head 51 under which it has just passed. Then, as the rotation of the rotary 'shaft 22 continues and the tapering tail 36.0f

the arcuate piston E'raises thelock head 51 for the continuous circular, pistonaccommodating chamber 1 of the outwardly turned casing side section A to pass therebeneath, the opposite lockhead 51 for the conti11'uouscircular pistnaccommodating chamber 1 of the outwardly turned i convex head, 62 presented opposite the flat` head 35 of the arcuate piston F; the pairs ,of rollers 56 v riding on the lock heads A51 andthestiil' oil 63 or the like 'resting on said lock heads 51 giving double assurance offree yet .positive operation oi' other raises and -vice versa,v Now, we are ready for 'firing of the charge, with the latter at the 'the lock heads'togetherwith fone lowering as the height-of its compression and this isv accom- 'plishe'd by the sparkplug 11,` through proper timing of'the ignition mechanism -of the rotary .motor, as-the flat head `$5'of the arcuater piston F- clears the outleto r discharge endf16 of the charge .compression chamber 14, thus firing the charge at the said outlet ordischarge end Bf the charge compression chamber.14,1within the con- V tinuousf circular piston accommodating chamber -1-o f thev outwardly turnedcasing side section VIii plosionof a fresh highly compressed combustible longitudinally curved `head 51 and slidably engages the latter,I theold charge against the'at piston head 35, the tapering tail 36 of the arcuate piston F is clearing the continuous circular piston accommodating cham- 'ber 1 of all expended gases remaining therein from the previous f iring,l,as the tapering tail 36 travels toward and passes the exhaust port 18. By the time the tapering tail 36 arrives atthe lower face 61 ofthe lock charge is' completely cleared out from the con- `tinubus circular piston accommodating chamber arcuate ,piston F moves across and thereby thor 'has just passed 'and begins to 'move a 1 and the exhaust port 18 is covered and thereby closedby the/mmh portion of the arcuate piston F, thus'preventing mixing of expended gases v,

with a new charge and resultant decrease in the eiilciency of operation and power of the rotary motor, creation ofy carbon-monoxide andV possibly other troubles or difficulties. As the arcuate piston \F continues its'travel around the continuous circular piston accomodating chamber oi the outwardly turned casing side section B.V the tapering tail '3B ofthe same slides along the longitudinally curved lower face of the lock head 51 and raises the latter to its uppermost position and again immediately starts to again 'drive newly expended gases around the continuous circular piston accommodating chamber toward the .exhaust port 18 and completely clear said continuous circular piston accommodating chamber 1, by the time the ,tapering tail 3B arrives at the longitudinallycurved lower face 61 of said lock head to repeat its engagement with the latter to again raise said lock head. Each time the arcuate pistonF engages and raises this lock head 51 and passes under the same, the opposite lock head 51 is lowered to and retained in its locked lowermost position -in the continuous circular piston accommodating chamber 1 of the outl `wardly turned ,casing side section A, through the medium of the pairs" of rollers 5B with their co- -4operative connections and also the action of the,

stiif'oil- B3 on said lockheads 51.,

This reversal of -positions of the lock heads 51 v'with respect to their.. respective outwardly' turned vcasing side sections ,A and B,f occurs immediately after .the

flathead" 35 of Ithe arcuate piston E clears the lock head q1 under which .said arcuate piston E way from the'lconvexLheald-of the same to create a suction by partial vacuum and then start to draw another generous charge into the continuousv circular. piston accommodating chamber oi' said .outwardly turned casing side section' A. At about'this same time, the tapering tail'i of the oughly closes the outlet or discharge end 18 of the charge compression chamber 14 for compression ofthe next 'charge which is then driven into and compressed in said charge compression chamber 14, by the tapering tail 38 of the arcuate t pistony E, as may now beapparent. While this rotary motor is complete in a single-unit, all vfour phases of a complete cycle occur during each Icomplete revolution ofthe-rotary shaft '22, the

-rotary shaft in for operation together, as required or desired.- `".lhe rotary motor may \be just as elciently op erated as a steam motor, by removal of the spark iirst two phases, namely, intake-and compression occurring inthe outwardly turned 'leasing side 'section A while the latter two phases, namely,

firing and exhaust occur in the outwardly turned casing side section B and in each of said outwardly turned casing side sections A and B, two phases of the cycle occur therein simultaneously,

during part of each complete revolution of the rotary shaft 22. Also, during part of each coml plete revolution of the rotary shaft 22, three phases of the cycle occur simultaneously, within the "unit, namely, intake, firing and exhaust or intake, compression and exhaust, on successive charges. All gases within theunit act upon the various piston ring sections 31, 33, 69 for the arcuate pistons andthe lock heads 51 to form gas seals therefor and thus prevent leakage of the gases around and pass said arcuate pistons E and F and the'lock heads 51, during operation of the rotary motor. The speed of operation is increased or decreased, through advancing or retarding the' spark, as in the conventional forms of internal combustion motors or engines now in general use and as all charges are preheated by the hot exhaust from the motor unit, before the charges enter the continuous circular piston chamber 1 of the outwardly turned casing side section A, the harges are thus thoroughly vaporized for high compression. hFurthermore, as this single unit rotary motor is equivalent to the conventional vtwo cylinder and some four cylin- `der internal combustion motors or engines, in

operation, power and eiiiciency, the power and emciency may be correspondingly increased as additional duplicate unitslare added onto the 22 in staggered relation and coupled plug 11, without requiring alteration'in the construction'of the rotary motor,-from the form disl closed.

"While I have 'disclosed what I consider to be the best embodiment of my invention. I desire it to be understood that changes in detail may be made without departing from the spirit of this invention and I therefore, desire further not to be limited beyond the. `requirements of the terms of my claims.

Having now fully described my invention, what I claim is:

l. A rotary motor including a casing stator with iiounting means radiating from its sides; said casing stator having an open center and continuous circular piston chambers in opposite.. faces; cover plates for said opposite faces; a rotary power shaft operating'in said cover plates and extending through the saidopen center of l the said casing stator; disk rotors rigid on said rotary powerI shaft inwardly oi said cover plates; arcuate pistons carried on 'said disk rotors and operable in saidA continuous circular piston chambers; said casing'` stator having an ,inner central water'chamber between said continuous circular piston chambers; a ycharge compression chamber extending through said inner central water having outwardly .turned casing side sections.

Y andere y a with inner and outer annular flanges forming opposite side walls of a pair of continuous circular piston chambers; outer cover plates for said outwardiy turned cas/ing side sections; said cover plates having hub portions; a rotary power shaft for said rotary motor journalled in said hub portions; a balance Awheel for said rotary shaft;

means between said casing side sections to retain them in spaced relation; said means having an inner central water chamber therein; a charge compression chamber extending at. an angle through said water. chamber and connecting said continuous circular piston chambers;

said -continuous circular piston chambers having inlet and outlet openings inl walls thereof; me-

chanical and hydraulic lockheads for said continuous circular piston chambers; disk rotors carriedI on said rotary power shaft; arcuate pistons carried on said disk rotors and operating in said continuous circular piston chambers and slidable over said inlet and outlet openings and under said lock heads in the respective continuous circular piston chambers: and means for utilizing the hot exhaust, gases ofthe rotary motor to preheat fresh charges before entry thereof into one of v said continuous -circular piston chambers. A

3. A' rotary motor including a casing stator having continuouscircular piston chambers in thereof with the walls of the respective continuons circular piston chambers at all times; said casingstator having a raised upperportion; lock heads within saidv raised upper portion and ope erable into said continuous circular piston chambers at times; means operable'within said raised upper portion to control operation of sa'id lock heads and assure locked engagement thereof.

with a wall of the respective continuous circular piston chambers at times; said lock heads having means provided thereforv to assure fluid and gas tightwengagement thereof withwalls of the respective continuous circular piston chambers at all times when within the latter: said ,tapering tails of the said arcuate pistons having sliding engagement with the 'respective lock heads to raise the latter from within vthe said continuous circular piston chambers at times; a charge com pression chamber between said continuous circu-` lar piston chambers; said arcuate pistons 'passcharge intake port.

ling over and thereby closingthe respective ends of said charge compression chamber at times: one of'said continuous circular piston chambers.- having a charge intake port; the other continuous circular piston chamber having an exhaust port; means for firing compressed charges with- 'in the last mentioned continuous circular piston chamber; and means extended from 'the said exhaust port to provide rfor preheating of the charges before entry thereof by way of the said 4. .A rotary motor complete in one unit 'for a full cycle during each rotation and including a casing stator having continuous circular piston chambers in opposed outwardly turned sidel tions; a rotary power shaft; a balance wheel for Y said rotary power shaft; cover plates for the opposed outwardly turned side sections of said cas-l ing stator; said cover plates having hubs portions; mounting bearings within said hub portionsvfor said rotary power shaft; disk rotors locked on said rotary power lshaft inwardly of said cover plates;

-V identical arcuate 'pistons carried on said disk rotors in opposed oifset relation; each of said arcuate pistons operating in one of said continuous circular piston. chambers in the same direction as if following one another; one of said continuous circular piston chambers having an intake port whilethe other has an exhaust port; a central compression chamberbetween said lcontinuous circular piston chambers; said arcuate pistons closing said ports and the endsof the saidcompression chamber for predetermined periods and ais-predetermined intervals during each 'complete revolution of the said rotaryA power shaft by sliding over the same; izo-operating lock heads i'orsaid continuous circular piston chambers; said arcuate pistons having tapering tails at one end for sliding engagement with the respective lock heads to move the latter out of the respective continu- -v ous circular piston chambers and permit 'said ar cuate pistons to pass thereunder for approximately one half of each revolution of said rotary power shaft; means for controlling said lock-heads; a g

central water chamber between the opposed outwardly turned sidesections of the said casing stator; means for iiringcompressed chargeswlth- 'in the said continuous circular piston chamberv havin-g the exhaust port; and means for utilizing to preheat and thereby thoroughly vaporize the fresh charges before the latterenter the said intake port, y

5. A single-rotation one-cycle motorincluding a casing; stator formed in sections; the'outer sections having inner and outer annular flanges forming side walls lof continuous, circular piston chambers opening outwardly; the central `section of the casing stator constituting an internal water chamber separating the said outer sections and situated jbetween the continuous circular piston Y chambers; a rotary power shaft; disk rotors keyed on said rotary power shaft; arcuate pistons carried ontheinner faces of said disk-rotors and operating in 'said continuus circular piston chambers; said arcuate pistons being opposed and offset from one another; pivoted lock-heads for said continuous circular piston-chambers;I said arcuate pistons having tapering tails for'sliding engagement `with said pivoted lock heads to pery thehot exhaust gases from the rotary motor unit mit said arcuate pistons to pass beneath 'said pivoted lock heads; lcover plates for said outer sections ofthe said casing stator; said rotary power *shaft Vbeing journalled in said cover plates: one

of said continuous circular piston chambers having a charge intake port in its outer side wall; the

arcuate piston operating 'in this continuous circular piston-*chamber serving to suck in and com- 135 pressv a charge during each complete revolution of the said rotary power shaft; the otherfco'ntinuous circular piston chamber having an ignition member and 'an exhaust port in its outer side wall; thejarcuate 'piston operating in said other continuous circular piston chamber serving toreceive the full force of a charge ignited in said-other continuous-circular pistonchamberand clear the latter of exhaust gasesduring each complete revolution lof the said rotary power shaft; .a charge take port; said firing-exhaust piston chamber having an exhaust port; both of said piston charnbers being of continuous circular form.; cover plates for the sides of said casing stator; a rotary power shaft rotatable insaid cover plates; disk'- rotors on said rotary power shaft; lock heads for said piston chambers; arcuate pistons on the` margins of the rotors andextending axially therefrom into said pistonchambers, said pistons being adapted to slidably engage and pass said lock heads during each complete revolution of said rotary power shaft.

7. A motor including a casing-stator with an intake-compression piston chamber in one side and a firing-exhaust piston chamber inthe other side; a charge compression chamber between the said piston chambers; the said intake-compression piston chamber having an intake port; said firing-exhaust piston chamber having an exhaust port; cover plates for the sides of said casing stator; a rotary power shaft rotatable in said cover plates; disk rotors on said rotary power shaft; saidv disk rotors having spiral oil suction grooves in their faces opposed to the said cover plates with the inner ends o f 'said spiral 4grooves terminating at the said rotary power shaft to lubricate the latter during operation of the motor; means for-supplying lubricating oil to said spiral vgrooves at all times; said rotors having their inner faces operating against said Vpiston chambers;

means for constantly lubricating said inner faces of the said disk rotors; lock heads for said piston chambers; pistons carried on marginal portions of the inner faces of said disk rotors and extendlng axially therefrom into said pistonchambers;

said pistons being adapted to slidably engage and lpass said lock heads duringeach complete revolution of said rotary power shaft;

8. A one unit single-rotation one-cycle rotary1 motor including a casing-stator with an intake-l compresslon piston chamber in one side and prov vided with an4 intake port; 'said casing-stator be ing provided'with a firing-exhaust piston chamber in its other side having an exhaust port; a charge compression chamber between the said piston chambers; cover plates for thefsidesof said,

-casing stator; a rotary power shaft'rotatable in said cover plates; disk-rotors keyed on said rotary power shaft; lock-heads operable into said piston chambers operative connections between said lock heads to assure uniform movement thereof in opposite directions when changingpositions; one of said lock heads being inits lowermost locked position within one of said piston'icham.- bers while the other lock head is in its uppermost position above the other piston chamber; means for exerting hydraulic pressure on said lock heads to assure smooth movement thereof and positive retention of each of said `lock headsvwhen in its lowermost locked position; each of said lock y heads having a longitudinally curved lower face;

arcuate pistons carried on one face of said disk rotors and traveling in one direction in said p iston chambers; said arcuate pistons having tapering tails for slidablc engagement with the said longitudinally curved lower faces of said lock heads to raise the latter and permit passage of said arcuate pistons; and a balance wheel for' said rotary power-shaft. -l

9. A one unit single-rotation one-cycle rotary motor including a casing-stator with an intakecompression piston chamber in one side and provided with an intake port; said casing stator being provided with a firing-exhaust piston charncer in its other side having an exhaust port; a charge compression chamber between the said pistonk chambers; Vcover plates for the sides of said casing stator; a rotary power shaft rotatable in said cover plates; disk rotors keyed on said rotary power shaft; said casing-stator having,-f a

raised central portion; lock heads pivoted in said raised central portion and' operable into said piston chambers to assume lowerrnost lockedpositionstherein; a rock arm mounted on said raised central portion of said casing stator; vertical rods working through the topof said raised central portion ,V of said casing-stator; adjustable and slidable connections between said rock-arm and said vertical-rods; rollers carried o n the lower ends of `said vertical-rods within -said raised central portion of'said casing stator and riding onthe upper faces of said lock-heads; one of said lock-heads being in its uppermost posiiion while the other is in its lowerniost locked posi, in said raised central, portion; means for exerting hydraulic pressure on said lock-heads to assure smooth movement thereofv and positive retention 'of each of said lock-heads when in its lowermost locked position; said lock-heads having longitudinally curved lower faces; arcuate pistons carried on'the face of said disk rotors.

and traveling in one direction in said piston chambers; saidarcuate pistons having tapering tailsjfor slidable engagement with the 'said longitudinally curved lower faces of the respective lock-heads to raise the lattenand permit passage of said arcuate pistons; and a balance-wheel for v said rotary ,power-shaft.

10. A 'rotary motor.' comprising a rotatable shaft, a casing wall surrounding-the shaft, an

annular piston chamber ineach end of the .cas-

ing wal-1, rotors connected to the shaft, and arcuate' pistons -carried by and projecting axially from the rotors in opposite directions, said pistons being slidably disposed within said piston chambers, lock-heads for the piston chambers, means foroperating the lock-heads, means for admitting an explosive charge to one of said piston chambers for compression, therewithin, means for conveying the compressed charge to another of said piston chambers, andimeans for igniting `the charge."

l1. A rotary motor comprisinga a casing wall surrounding the shaft, cover platesV for the casing wall rotatably supporting the shaft, u

an annular pistonchamber in each end of the casing wall, said chambers 'having sides opening towards said cover plates, rotors connected to' vthe shaft, and arcuate'pistons carried by and projecting axially from said rotors, said pistons being slidably disposed in said piston chambers, lock-heads for the piston chambers, means for Aoperating the look-heads, means Vfor admitting an explosive charge lto one of said piston chambers for compression ,ther'cwlthim 'means for con- Veyin'g the compressed charge. to another of said piston chambers, and means for igniting the charge.

12.4 A yrotary motor comprising a shaft., a casing wallsurrounding the shaft, cover plates for the casing wall rotatably supporting the shaft' an annular piston chamber in eachend of the casing wall, lock-heads for said chambers, means for operating the lock-heads, said c iiambershaving sides opening towards said cover plates, rotorsconnected to thev shaft, arcuate pistons carried by and projectingfaxially from said rotors,

"said pistons being sl-idably disposed in said piston chambers, and a water chamber in the casing wall between the piston chambers, adapted to eceive water for. cooling said chambers, means for admitting an explosive charge to one of said piston chambers, a charge compression chamber extendingl through the water chamber-and con` necting said piston chambers, means for'igniting said explosive charge, and an exhaust leading from.' one of said piston chambers,

13. A rotary motor comprising a shaft, a casing wall surrounding the shaft, cover plates for i the casing wall rotatably supporting the shaft,

an annular piston chamber in each end. of the casing wall, lock-heads for `said piston chambers, said chambers having sides opening towards said cover. plates, rotors connected to the shaft, arcuate pistons carried by and projecting axially from said rotors, saidpistons being` silidably =dis posed in said piston chambers, awater chamber in the'casing wall between thepiston chambers, and a compression chamberv adaptedrto receive water for cooling said chambers, means for adl mitting an-explosive charge to one of said pistonv chambers, a charge compression chamber extending'through the water chamber and connecting said piston chambers, means for ignitingsaid ex" plosive charge, and an vexhaust leading-from one o1 said'piston chambers.

` Y1li. A-rotary motor comprising a shaft,` a cas-l ing wall surrounding the shaft, cover plates'for theV casing-wall'rotatably supporting the shaft,

. an annular piston chamber in each erd o`f the casing wall, lock-heads for the piston chambers, means foroperating the lock-headsfsaidl chambers having' sides opening. towards said cover plates, rotorsl connected to the shaft, and arcuate pistons carried by and projecting'. axially from said rotors,\said"pistons` being slidably'disf posed in said piston chambers and at opposite `sides of the shaft, means for admitting an explosive charge to on'e of saidl pistondchambers f or compression therewithin, meansfor conveying the compressed chargeto another of the piston chambers, means for firing the compressed charge, and an exhausti for the last-named piston chamber. v 15. A rotary motor comprising a shaft, a casing wall 'surrounding the shaft, cover plates for thev casing wall rotatably supporting the shaft,

an annular pistonchamber in each end. of the casing wall, said chambers having sides opening towards'msaid coverplates, `rotors connected to the shaft, arcuate pistons carried by and projecting axially from said rotors, said pistons being slidably disposed in said piston chambers and at diametrically opposite sides o-f the shaft, each an annular piston chamber in each end of the casing wall, said chambers having sides pening towards said cover plates, rotors connected t'o'the shaft, and an arcuate piston carried by and pro- Jecting axially Afrom the inner face -oi each rotor and 'extending substantially/ half-way therearound, saidpistons being slidably disposed .1in

said piston chambers and at opposite sides of the shaft,l lock-heads for the piston chambers, means for operating the lock-heads, meansfor admity ting an explosive-chargeto one of vsaid piston chambers forv compression therewithin, means' fory conveying the compressed charge to another of said piston cham-bers, and means for igniting 4the explosive charge;

l'l. A rotary .motor comprisinga shaft-,a cas- .,ing wall surrounding lthe shaft, cover plates for the casing wall rotatably supporting the shaft,- Aan annular piston chamber in veach endof the casing wall, said chambers having :sides .opening a towards' said cover plates, rotors connected to the shaft, arcuate pistons carried by and projecting axially from said rotors, said pistons being slidchambers adapted to be raised by said tapered "ends, and hydrauncmeans for urgig one of. saidlock-heads into a piston chamber when anothe of 'said lock-heads is raised. f

WAL'I'ER EfrgUMRICHoUsE i 'ably disposed in said pisto-n chambers and atl opposite sides of the shaft, each' of said.pistons v having a tapered' end, lock-heads for said piston 

